The Parametric Models
The Parametric Models
This chapter presents a review of parametric models (exponential model, Weibull model, piecewise exponential model). Parametric models are the method from which the contemporary survival analysis originates; particularly, the model is an extension of the traditional ordinary least squares (OLS) regression; understanding the main features of parametric models helps users understand the fundamental concepts of survival analysis as well as important statistical concepts in general. The parametric models can also be used to solve unique problems, such as handling left-hand and interval censorings; one of interesting parametric models is the piecewise exponential model, which is widely applied by social, health, and behavioral scientists.
Keywords: parametric models, survival analysis, exponential model, Weibull model, piecewise exponential model
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